We are looking for an experienced Computer Systems Engineer - Pega Resource to join the National Airspace System (NAS) Integration Support Contract (NISC IV) to support the Federal Aviation Administration in the Washington DC Office. As a Computer Systems Engineer 6 Pega Resource, you will play a crucial part in designing, developing, and maintaining high-quality software solutions as well as operational support to the program. You will be involved in all phases of the software development lifecycle from requirements gathering to deployment and maintenance. The ideal resource will be working as part of a technical support team that designs, a0builds, maintains and supports the enterprise PEGA infrastructure, reviews, tests and implements patches and upgrades, while developing and maintaining complete and accurate documentation for supported environments. Required Experience, Skills, and Education: b7 Bachelor's Degree Bachelor's Degree in Computer Science, Mathematics, Engineering, or a related field and 8+ years of relevant experience or a Master99s Degree in Computer Science, Mathematics, Engineering, or a related field and 6 years of relevant experience. b7 Must be eligible to work in the U.S. and pass FAA security screening for positions of Public Trust. b7 Previous business system solution development experience using Pegasystems (i.e. Pega) software. b7 5+ years a0in Pega development, with at least b01-2 yearsa0 specifically in hands on development experience with Constellation b7 Deep expertise ina0Pega Infinity (v8.8, v23, or v24)a0and the Constellation SDK b7 5+ years supporting PEGA applications b7 Proven ability to use critical thinking skills in troubleshooting b7 Strong knowledge of PEGA Application packaging, security, rulesets, portals, reports, data migration, developing pega jobs and listeners and other PEGA OOTB tools and hands on experience with Pega Constellation SDK b7 Proficiency in defining logical data models, data objects, and relationships that support Constellation's modular design b7 Skilled in REST/SOAP services, Kafka, and data pages for real-time data exchange b7 Knowledge of Web technologies: languages, frameworks, techniques, industry trends, etc. that includes .Net or Java or REACT for Pega Consitllation customization. b7 Excellent verbal and written communication skills including presentation skills Preferred Experience, Skills, and Education: b7 Experience with the Federal Government work environment b7 Prior Knowledge of FAA's tools and systems b7 Pega CSSA, CLSA Certification b7 Pega Constellation Certificationa0or specialized badges are highly preferred Original Posting: May 20, 2026 Pay Range: Pay Range $107,900.00 - $195,050.00 The Leidos pay range for this job level is a general guideline onlya0and not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.